Carbonate sedimentology of the Propeller Mound, Northeast Atlantic
Cobertura |
MEDIAN LATITUDE: 52.153345 * MEDIAN LONGITUDE: -12.767319 * SOUTH-BOUND LATITUDE: 52.147683 * WEST-BOUND LONGITUDE: -12.773000 * NORTH-BOUND LATITUDE: 52.158667 * EAST-BOUND LONGITUDE: -12.752633 * DATE/TIME START: 2000-09-18T10:57:00 * DATE/TIME END: 2000-09-24T17:34:00 |
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Data(s) |
28/01/2007
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Resumo |
High resolution studies from the Propeller Mound, a cold-water coral carbonate mound in the NE Atlantic, show that this mound consists of >50% carbonate justifying the name "carbonate mound". Through the last ~300,000 years approximately one third of the carbonate has been contributed by cold-water corals, namely Lophelia pertusa and Madrepora oculata. This coral bound contribution to the carbonate budget of Propeller Mound is probably accompanied by an unknown portion of sediments buffered from suspension by the corals. However, extended hiatuses in Propeller Mound sequences only allow the calculation of a net carbonate accumulation. Thus, net carbonate accumulation for the last 175 kyr accounts for only <0.3 g/cm2/kyr, which is even less than for the off-mound sediments. These data imply that Propeller Mound faces burial by hemipelagic sediments as has happened to numerous buried carbonate mounds found slightly to the north of the investigated area. |
Formato |
application/zip, 16 datasets |
Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.712028 doi:10.1594/PANGAEA.712028 |
Idioma(s) |
en |
Publicador |
PANGAEA |
Relação |
Dorschel, Boris (2003): Late Quaternary Development of a deep-water Carbonate Mound in the northeast Atlantic. PhD Thesis, Elektronische Dissertationen an der Staats- und Universitätsbibliothek Bremen, Germany, urn:nbn:de:gbv:46-diss000006917 Dorschel, Boris; Hebbeln, Dierk; Rüggeberg, Andres; Dullo, Wolf Christian; Freiwald, André (2005): Growth and Erosion of a Cold-Water Coral Covered Carbonate Mound in the Northeast Atlantic during the Late Pleistocene and Holocene. Earth and Planetary Science Letters, 233(1-2), 33-44, doi:10.1016/j.epsl.2005.01.035 Rüggeberg, Andres; Dorschel, Boris; Dullo, Wolf Christian; Hebbeln, Dierk (2005): Sedimentary patterns in the vicinity of a carbonate mound in the Hovland Mound Province, northern Porcupine Seabight. In: Freiwald, A & Roberts, JM (eds.), 2005, Cold-water Corals and Ecosystems, Springer-Verlag, Berlin, Heidelberg, 87-112, doi:10.1007/3-540-27673-4_5 Rüggeberg, Andres; Dullo, Wolf Christian; Dorschel, Boris; Hebbeln, Dierk (2007): Environmental changes and growth history of a cold-water carbonate mound (Propeller Mound, Porcupine Seabight). International Journal of Earth Sciences, 96(1), 57-72, doi:10.1007/s00531-005-0504-1 |
Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
Fonte |
Supplement to: Dorschel, Boris; Hebbeln, Dierk; Rüggeberg, Andres; Dullo, Wolf Christian (2007): Carbonate budget of a cold-water coral carbonate mound: Propeller Mound, Porcupine Seabight. International Journal of Earth Sciences, 96(1), 73-83, doi:10.1007/s00531-005-0493-0 |
Palavras-Chave | #(230Th/232Th); (230Th/232Th) std dev; (230Th/234U); (230Th/234U) std dev; 230Th; 230Th std dev; 232Th; 232Th std dev; 234U/238U; 234U/238U std dev; 238U; 238U std dev; 478-2; 479-1; 485-1; 488-1; 489-1; 490-1; Age, dated; Age, dated standard deviation; Age, Uranium-Thorium; Age dated; Age std dev; C/N; Ca; Ca/(Ca+Fe); CaCO3; Calcium; Calcium/(Calcium+Iron) ratio; Calcium carbonate; Calculated, CaCO3=(TC-TOC)*8.333; Calculated, see reference(s); Carbon, total; Carbon/Nitrogen ratio; Center for Marine Environmental Sciences; Copper; Coral; Cu; Depth; DEPTH, sediment/rock; dpm/g; ECOMOUND; Element analyser CNS, Carlo Erba NA1500; Environmental controls on mound formation along the european margin; Fe; GeoB6718-2; GeoB6719-1; GeoB6725-1; GeoB6728-1; GeoB6729-1; GeoB6730-1; GEOSCAN II (GEOTEK); Gravity corer (Kiel type); Iron; K; Manganese; MARUM; Mass spectrometer Finnigan MAT 262 RPQ Plus; Mn; Nitrogen, total; per mil; Porcupine Seabight; POS265; Poseidon; Potassium; SL; Sr; Sr/(Sr+Ca); Strontium; Strontium/(Strontium+Calcium); TC; Thorium 230; Thorium 230, standard deviation; Thorium 230/Thorium 232 activity ratio; Thorium 230/Thorium 232 activity ratio, standard deviation; Thorium 230/Uranium 234 activity ratio; Thorium 230/Uranium 234 activity ratio, standard deviation; Thorium 232; Thorium 232, standard deviation; Ti; Titanium; TN; Uranium 234/Uranium 238 activity ratio; Uranium 234/Uranium 238 activity ratio, standard deviation; Uranium 238; Uranium 238, standard deviation; X-ray fluorescence core scanner (XRF) |
Tipo |
Dataset |